Air purifier



FIG. 1 is a perspective view of the air purifier of the present invention;

FIG. 2 is a front elevation view of the air purifier of FIG. 1;

FIG. 3 is a right side elevational view of the air purifier of FIG. 1, the left side being a mirror image thereof;

FIG. 4 is a top plan view of the air purifier of FIG. 1;

FIG. 5 is a rear elevational view of the air purifier of FIG. 1; and,

FIG. 6 is a bottom plan view of the air purifier of FIG. 1.

The broken line showing of parts of the drawings is included for the purpose of illustrating use and environment and forms no part of the claimed design. 

The ornamental design for an air purifier, as shown and described. 